221221001101102 has 16 divisors (see below), whose sum is σ = 342561447309312. Its totient is φ = 107034387491160.

The previous prime is 221221001101069. The next prime is 221221001101183. The reversal of 221221001101102 is 201101100122122.

It is a super-2 number, since 2×221221001101102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133040338 + ... + 134692885.

It is an arithmetic number, because the mean of its divisors is an integer number (21410090456832).

Almost surely, 2^{221221001101102} is an apocalyptic number.

221221001101102 is a deficient number, since it is larger than the sum of its proper divisors (121340446208210).

221221001101102 is a wasteful number, since it uses less digits than its factorization.

221221001101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267746583.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221221001101102 its reverse (201101100122122), we get a palindrome (422322101223224).

The spelling of 221221001101102 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, one million, one hundred one thousand, one hundred two".